A451 · CH-20

For A451 · CH-20, astm specification is A451; class or grade is CH-20; esab-recommended smaw (stick) filler is AR 309/309H, verified against its source on 2026-08-19.

What the source says

A451 CF-3, CF-3A AR 308L Autrod/Tigrod 308L/308LSi CF-8, CF-8A AR 308/308H/308L, OK 61.25 Autrod/Tigrod 308H/308L/308LSi CF-3M AR 316L Autrod/Tigrod 316L/316LSi CF-8M AR 316/316H CF-8C OK 61.81/61.85 Autrod/Tigrod 347/347Si CF-10 AR 308/308H, OK 61.25 Autrod/Tigrod 308H CH-8, CH10 AR 309L Autrod/Tigrod 309L/309Si CH-20 AR 309/309H

— assets.esab.com, retrieved 2026-08-19

Source

• assets.esab.comhttps://assets.esab.com/assetbank-esab/assetfile/22174.pdf

Last verified against source: 2026-08-19. Due for re-check by 2028-08-18. This page as Markdown · OKF bundle · full dataset as JSON.